S
M
T
W
T
F
S
26
79°
59°
27
81°
60°
28
80°
56°
29
80°
57°
30
84°
59°
31
81°
54°
1
81°
60°
2
84°
60°
3
81°
54°
4
84°
53°
5
79°
54°
6
79°
53°
7
84°
53°
8
80°
54°
9
82°
59°
10
84°
58°
11
83°
56°
12
84°
58°
13
84°
60°
14
83°
60°
15
80°
59°
16
84°
52°
17
83°
51°
18
77°
51°
19
77°
52°
20
76°
54°
21
77°
50°
22
76°
56°
23
78°
57°
24
82°
58°
25
84°
57°
26
84°
48°
27
79°
49°
28
74°
48°
29
74°
49°
30
75°
54°
31
76°
57°
1
82°
57°
2
82°
54°
3
80°
50°
4
80°
55°
5
79°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Keene
Keene's August 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 48° and 60°. The average high for August is 80° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Keene. See also: September | October | November.
